| 1 | ###########################################################################
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| 2 | #
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| 3 | # AZCompactList.pm --
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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| 26 | # classifier plugin for sorting alphabetically
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| 27 | # options are:
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| 28 | #
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| 29 | # metadata=Metaname -- all documents with Metaname metadata
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| 30 | # will be included in list, list will be sorted
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| 31 | # by this element.
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| 32 | # title=Title -- (optional) the title field for this classification.
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| 33 | # if not included title field will be Metaname.
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| 34 | # mingroup=Num -- (optional) the smallest value that will cause
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| 35 | # a group in the hierarchy to form.
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| 36 | # minnesting=Num -- (optional) the smallest value that will cause a
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| 37 | # list to converted into nested list
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| 38 | # mincompact=Num -- (optional) used in compact list
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| 39 | # maxcompact=Num -- (optional) used in compact list
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| 40 | # doclevel=top|section -- (optional) level to process document at.
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| 41 | # onlyfirst -- (optional) control whether all or only first
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| 42 | # metadata value used from array of metadata
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| 43 | package AZCompactList;
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| 44 |
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| 45 | use sorttools;
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| 46 |
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| 47 | sub new {
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| 48 | my ($class, @options) = @_;
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| 49 |
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| 50 | my ($metaname, $title);
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| 51 | my $mingroup = 2;
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| 52 | my $minnesting = 20;
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| 53 | my $mincompact = 10;
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| 54 | my $maxcompact = 30;
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| 55 | my $doclevel = "top";
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| 56 | my $onlyfirst = 0;
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| 57 | my $recopt = undef;
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| 58 |
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| 59 | foreach $option (@options) {
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| 60 | if ($option =~ /^metadata=(.*)$/i) {
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| 61 | $metaname = $1;
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| 62 | } elsif ($option =~ /^title=(.*)$/i) {
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| 63 | $title = $1;
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| 64 | } elsif ($option =~ /^mingroup(size)?=(.*)$/i) {
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| 65 | $mingroup = $2;
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| 66 | } elsif ($option =~ /^minnesting=(.*)$/i) {
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| 67 | $minnesting = $1;
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| 68 | } elsif ($option =~ /^mincompact=(.*)$/i) {
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| 69 | $mincompact = $1;
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| 70 | } elsif ($option =~ /^maxcompact=(.*)$/i) {
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| 71 | $maxcompact = $1;
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| 72 | } elsif ($option =~ /^doclevel=(.*)$/i) {
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| 73 | $doclevel = $1;
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| 74 | } elsif ($option =~ /^onlyfirst$/i) {
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| 75 | $onlyfirst = 1;
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| 76 | } elsif ($option =~ /^recopt$/i) {
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| 77 | $recopt = "on";
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| 78 | }
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| 79 | }
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| 80 |
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| 81 | die "AZCompactList used with no metadata name to classify by\n"
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| 82 | unless defined $metaname;
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| 83 | $title = $metaname unless defined $title;
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| 84 |
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| 85 | return bless {
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| 86 | 'list'=>{},
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| 87 | 'listmetavalue'=>{},
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| 88 | 'reclassify'=>{},
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| 89 | 'reclassifylist'=>{},
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| 90 | 'metaname' => $metaname,
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| 91 | 'title' => $title,
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| 92 | 'mingroup' => $mingroup,
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| 93 | 'minnesting' => $minnesting,
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| 94 | 'mincompact' => $mincompact,
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| 95 | 'maxcompact' => $maxcompact,
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| 96 | 'doclevel' => $doclevel,
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| 97 | 'onlyfirst' => $onlyfirst,
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| 98 | 'recopt' => $recopt
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| 99 | }, $class;
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| 100 |
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| 101 |
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| 102 | }
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| 103 |
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| 104 | sub init
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| 105 | {
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| 106 | my $self = shift (@_);
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| 107 |
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| 108 | $self->{'list'} = {};
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| 109 | $self->{'listmetavalue'} = {};
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| 110 | $self->{'reclassify'} = {};
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| 111 | $self->{'reclassifylist'} = {};
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| 112 | }
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| 113 |
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| 114 | $tmp = 0;
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| 115 |
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| 116 | sub classify
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| 117 | {
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| 118 | my $self = shift (@_);
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| 119 | my ($doc_obj) = @_;
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| 120 |
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| 121 | my $doc_OID = $doc_obj->get_OID();
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| 122 |
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| 123 | my @sectionlist = ();
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| 124 | my $topsection = $doc_obj->get_top_section();
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| 125 |
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| 126 | my $metaname = $self->{'metaname'};
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| 127 |
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| 128 | $metaname =~ s/(\/.*)//; # grab first name in n1/n2/n3 list
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| 129 | ## print STDERR "AZCompactList: processing $doc_OID for $metaname\n";
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| 130 |
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| 131 | if ($self->{'doclevel'} =~ /^top(level)?/i)
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| 132 | {
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| 133 | push(@sectionlist,$topsection);
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| 134 | }
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| 135 | else
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| 136 | {
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| 137 | my $thissection = $doc_obj->get_next_section($topsection);
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| 138 | while (defined $thissection)
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| 139 | {
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| 140 | push(@sectionlist,$thissection);
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| 141 | $thissection = $doc_obj->get_next_section ($thissection);
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| 142 | }
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| 143 | }
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| 144 |
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| 145 | my $thissection;
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| 146 | foreach $thissection (@sectionlist)
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| 147 | {
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| 148 | my $full_doc_OID
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| 149 | = ($thissection ne "") ? "$doc_OID.$thissection" : $doc_OID;
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| 150 |
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| 151 | if (defined $self->{'list'}->{$full_doc_OID})
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| 152 | {
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| 153 | print STDERR "WARNING: AZCompactList::classify called multiple times for $full_doc_OID\n";
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| 154 | }
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| 155 | $self->{'list'}->{$full_doc_OID} = [];
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| 156 | $self->{'listmetavalue'}->{$full_doc_OID} = [];
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| 157 |
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| 158 | my $metavalues = $doc_obj->get_metadata($thissection,$metaname);
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| 159 | my $metavalue;
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| 160 | foreach $metavalue (@$metavalues)
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| 161 | {
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| 162 | ### print STDERR "$metaname :\tmetavalue = $metavalue\n";
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| 163 | # if this document doesn't contain the metadata element we're
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| 164 | # sorting by we won't include it in this classification
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| 165 | if (defined $metavalue && $metavalue =~ /\w/)
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| 166 | {
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| 167 | my $formatted_metavalue = $metavalue;
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| 168 | if ($self->{'metaname'} =~ m/^Creator(:.*)?$/)
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| 169 | {
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| 170 | &sorttools::format_string_name_english (\$formatted_metavalue);
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| 171 | }
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| 172 | else
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| 173 | {
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| 174 | &sorttools::format_string_english (\$formatted_metavalue);
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| 175 | }
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| 176 |
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| 177 | push(@{$self->{'list'}->{$full_doc_OID}},$formatted_metavalue);
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| 178 | push(@{$self->{'listmetavalue'}->{$full_doc_OID}} ,$metavalue);
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| 179 |
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| 180 | last if ($self->{'onlyfirst'});
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| 181 | }
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| 182 | }
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| 183 | my $date = $doc_obj->get_metadata_element($thissection,"Date");
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| 184 | $self->{'reclassify'}->{$full_doc_OID} = [$doc_obj,$date];
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | sub reinit
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| 189 | {
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| 190 | my ($self,$classlist_ref) = @_;
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| 191 |
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| 192 | my %mtfreq = ();
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| 193 | my @single_classlist = ();
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| 194 | my @multiple_classlist = ();
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| 195 |
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| 196 | # find out how often each metavalue occurs
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| 197 | map
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| 198 | {
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| 199 | my $mv;
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| 200 | foreach $mv (@{$self->{'listmetavalue'}->{$_}} )
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| 201 | {
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| 202 | $mtfreq{$mv}++;
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| 203 | }
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| 204 | } @$classlist_ref;
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| 205 |
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| 206 | # use this information to split the list: single metavalue/repeated value
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| 207 | map
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| 208 | {
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| 209 | my $i = 1;
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| 210 | my $metavalue;
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| 211 | foreach $metavalue (@{$self->{'listmetavalue'}->{$_}})
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| 212 | {
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| 213 | if ($mtfreq{$metavalue} >= $self->{'mingroup'})
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| 214 | {
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| 215 | push(@multiple_classlist,[$_,$i,$metavalue]);
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| 216 | }
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| 217 | else
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| 218 | {
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| 219 | push(@single_classlist,[$_,$metavalue]);
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| 220 | $metavalue =~ tr/[A-Z]/[a-z]/;
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| 221 | $self->{'reclassifylist'}->{"Metavalue_$i.$_"} = $metavalue;
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| 222 | }
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| 223 | $i++;
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| 224 | }
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| 225 | } @$classlist_ref;
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| 226 |
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| 227 |
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| 228 | # Setup sub-classifiers for multiple list
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| 229 |
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| 230 | $self->{'classifiers'} = {};
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| 231 |
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| 232 | my $pm;
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| 233 | foreach $pm ("List", "SectionList")
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| 234 | {
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| 235 | my $listname
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| 236 | = &util::filename_cat($ENV{'GSDLHOME'},"perllib/classify/$pm.pm");
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| 237 | if (-e $listname) { require $listname; }
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| 238 | else
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| 239 | {
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| 240 | die "AZCompactList ERROR - couldn't find classifier \"$listname\"\n";
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| 241 | }
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| 242 | }
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| 243 |
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| 244 | # Create classifiers objects for each entry >= mingroup
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| 245 | my $metavalue;
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| 246 | foreach $metavalue (keys %mtfreq)
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| 247 | {
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| 248 | if ($mtfreq{$metavalue} >= $self->{'mingroup'})
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| 249 | {
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| 250 | my $listclassobj;
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| 251 | my $doclevel = $self->{'doclevel'};
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| 252 | my $metaname = $self->{'metaname'};
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| 253 | my @metaname_list = split('/',$metaname);
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| 254 | $metaname = shift(@metaname_list);
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| 255 | if (@metaname_list==0)
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| 256 | {
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| 257 | if ($doclevel =~ m/^top(level)?/i)
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| 258 | {
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| 259 | my $args = "\"metadata=$metaname\"";
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| 260 | $args .= ", \"title=\$metavalue\"";
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| 261 | $args .= ", \"sort=Date\"";
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| 262 | eval ("\$listclassobj = new List($args)");
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| 263 | }
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| 264 | else
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| 265 | {
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| 266 | my $args = "\"metadata=$metaname\"";
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| 267 | $args .= ", \"title=\$metavalue\"";
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| 268 | $args .= ", \"sort=Date\"";
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| 269 | eval ("\$listclassobj = new SectionList($args)");
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| 270 | }
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| 271 | }
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| 272 | else
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| 273 | {
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| 274 | $metaname = join('/',@metaname_list);
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| 275 |
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| 276 | my $args = "\"metadata=$metaname\"";
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| 277 | $args .= ", \"title=\$metavalue\"";
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| 278 | $args .= ", \"doclevel=\$doclevel\"";
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| 279 | $args .= ", \"recopt\"";
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| 280 |
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| 281 | eval ("\$listclassobj = new AZCompactList($args)");
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| 282 | }
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| 283 | die "$@" if $@;
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| 284 |
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| 285 | $listclassobj->init();
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| 286 |
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| 287 | if (defined $metavalue && $metavalue =~ /\w/)
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| 288 | {
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| 289 | my $formatted_node = $metavalue;
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| 290 | if ($self->{'metaname'} =~ m/^Creator(:.*)?$/)
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| 291 | {
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| 292 | &sorttools::format_string_name_english(\$formatted_node);
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| 293 | }
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| 294 | else
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| 295 | {
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| 296 | &sorttools::format_string_english(\$formatted_node);
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| 297 | }
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| 298 |
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| 299 | $self->{'classifiers'}->{$metavalue}
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| 300 | = { 'classifyobj' => $listclassobj,
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| 301 | 'formattednode' => $formatted_node };
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| 302 | }
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| 303 | }
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| 304 | }
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| 305 |
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| 306 |
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| 307 | return (\@single_classlist,\@multiple_classlist);
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| 308 | }
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| 309 |
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| 310 |
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| 311 | sub reclassify
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| 312 | {
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| 313 | my ($self,$multiple_cl_ref) = @_;
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| 314 |
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| 315 | # Entries in the current classify list that are "book nodes"
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| 316 | # should be recursively classified.
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| 317 | #--
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| 318 | foreach $dm_pair (@$multiple_cl_ref)
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| 319 | {
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| 320 | my ($doc_OID,$mdoffset,$metavalue) = @$dm_pair;
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| 321 | my $listclassobj;
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| 322 |
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| 323 | # find metavalue in list of sub-classifiers
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| 324 | my $found = 0;
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| 325 | my $node_name;
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| 326 | foreach $node_name (keys %{$self->{'classifiers'}})
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| 327 | {
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| 328 | $resafe_node_name = $node_name;
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| 329 | $resafe_node_name =~ s/(\(|\)|\[|\]|\{|\}|\^|\$|\.|\+|\*|\?|\|)/\\$1/g;
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| 330 | if ($metavalue =~ m/^$resafe_node_name$/i)
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| 331 | {
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| 332 | my ($doc_obj,$date) = @{$self->{'reclassify'}->{$doc_OID}};
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| 333 |
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| 334 | ## date appears to not be used in classifier call ####
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| 335 |
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| 336 | if ($doc_OID =~ m/^.*\.(\d+)$/)
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| 337 | {
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| 338 | $self->{'classifiers'}->{$node_name}->{'classifyobj'}
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| 339 | ->classify($doc_obj, "Section=$1");
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| 340 | }
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| 341 | else
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| 342 | {
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| 343 | $self->{'classifiers'}->{$node_name}->{'classifyobj'}
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| 344 | ->classify($doc_obj);
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| 345 | }
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| 346 |
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| 347 | $found = 1;
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| 348 | last;
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| 349 | }
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| 350 | }
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| 351 |
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| 352 | if (!$found)
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| 353 | {
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| 354 | print STDERR "Warning: AZCompactList::reclassify ";
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| 355 | print STDERR "could not find sub-node for $metavalue with doc_OID $doc_OID\n";
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| 356 | }
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| 357 | }
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| 358 | }
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| 359 |
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| 360 |
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| 361 |
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| 362 | sub get_reclassify_info
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| 363 | {
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| 364 | my $self = shift (@_);
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| 365 |
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| 366 | my $node_name;
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| 367 | foreach $node_name (keys %{$self->{'classifiers'}})
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| 368 | {
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| 369 | my $classifyinfo
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| 370 | = $self->{'classifiers'}->{$node_name}->{'classifyobj'}
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| 371 | ->get_classify_info();
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| 372 | $self->{'classifiers'}->{$node_name}->{'classifyinfo'}
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| 373 | = $classifyinfo;
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| 374 | $self->{'reclassifylist'}->{"CLASSIFY.$node_name"}
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| 375 | = $self->{'classifiers'}->{$node_name}->{'formattednode'};
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| 376 | }
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| 377 | }
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| 378 |
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| 379 |
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| 380 | sub alpha_numeric_cmp
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| 381 | {
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| 382 | my ($self,$a,$b) = @_;
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| 383 |
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| 384 | my $title_a = $self->{'reclassifylist'}->{$a};
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| 385 | my $title_b = $self->{'reclassifylist'}->{$b};
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| 386 |
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| 387 | if ($title_a =~ m/^(\d+(\.\d+)?)/)
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| 388 | {
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| 389 | my $val_a = $1;
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| 390 | if ($title_b =~ m/^(\d+(\.\d+)?)/)
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| 391 | {
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| 392 | my $val_b = $1;
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| 393 | if ($val_a != $val_b)
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| 394 | {
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| 395 | return ($val_a <=> $val_b);
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| 396 | }
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| 397 | }
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| 398 | }
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| 399 |
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| 400 | return ($title_a cmp $title_b);
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| 401 | }
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| 402 |
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| 403 | sub get_classify_info {
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| 404 | my $self = shift (@_);
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| 405 |
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| 406 | my @classlist =keys %{$self->{'list'}}; # list all doc oids
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| 407 |
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| 408 | my ($single_cl_ref,$multiple_cl_ref) = $self->reinit(\@classlist);
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| 409 | $self->reclassify($multiple_cl_ref);
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| 410 | $self->get_reclassify_info();
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| 411 |
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| 412 |
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| 413 | # my @reclassified_classlist
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| 414 | # = sort {$self->{'reclassifylist'}->{$a} cmp $self->{'reclassifylist'}->{$b};} keys %{$self->{'reclassifylist'}};
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| 415 |
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| 416 | # alpha_numeric_cmp is slower but handles numbers better ...
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| 417 | my @reclassified_classlist
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| 418 | = sort { $self->alpha_numeric_cmp($a,$b) } keys %{$self->{'reclassifylist'}};
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| 419 |
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| 420 |
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| 421 | return $self->splitlist (\@reclassified_classlist);
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| 422 | }
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| 423 |
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| 424 | sub get_entry {
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| 425 | my $self = shift (@_);
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| 426 | my ($title, $childtype, $metaname, $thistype) = @_;
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| 427 |
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| 428 | # organise into classification structure
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| 429 | my %classifyinfo = ('childtype'=>$childtype,
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| 430 | 'Title'=>$title,
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| 431 | 'contains'=>[],
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| 432 | 'mdtype'=>$metaname);
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| 433 |
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| 434 | $classifyinfo{'thistype'} = $thistype
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| 435 | if defined $thistype && $thistype =~ /\w/;
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| 436 |
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| 437 | return \%classifyinfo;
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| 438 | }
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| 439 |
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| 440 |
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| 441 |
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| 442 | # splitlist takes an ordered list of classifications (@$classlistref) and
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| 443 | # splits it up into alphabetical sub-sections.
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| 444 | sub splitlist {
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| 445 | my $self = shift (@_);
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| 446 | my ($classlistref) = @_;
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| 447 | my $classhash = {};
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| 448 |
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| 449 | # top level
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| 450 | my @metanames = split("/",$self->{'metaname'});
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| 451 | my $metaname = shift(@metanames);
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| 452 |
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| 453 | my $childtype = "HList";
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| 454 | $childtype = "VList" if (scalar (@$classlistref) <= $self->{'minnesting'});
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| 455 |
|
|---|
| 456 | my $classifyinfo;
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| 457 | if (!defined($self->{'recopt'}))
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| 458 | {
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|---|
| 459 | my $title = $metaname;
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| 460 | $classifyinfo
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| 461 | = $self->get_entry ($metaname, $childtype, $metaname, "Invisible");
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| 462 | }
|
|---|
| 463 | else
|
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| 464 | {
|
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| 465 | my $title = $self->{'title'};
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|---|
| 466 | $classifyinfo
|
|---|
| 467 | = $self->get_entry ($title, $childtype, $metaname, "VList");
|
|---|
| 468 | }
|
|---|
| 469 |
|
|---|
| 470 | # don't need to do any splitting if there are less than 'minnesting' classifications
|
|---|
| 471 | if ((scalar @$classlistref) <= $self->{'minnesting'}) {
|
|---|
| 472 | foreach $subOID (@$classlistref) {
|
|---|
| 473 | if ($subOID =~ /^CLASSIFY\.(.*)$/
|
|---|
| 474 | && defined $self->{'classifiers'}->{$1})
|
|---|
| 475 | {
|
|---|
| 476 | ### print STDERR "*** subOID = $subOID\n";
|
|---|
| 477 |
|
|---|
| 478 | push (@{$classifyinfo->{'contains'}},
|
|---|
| 479 | $self->{'classifiers'}->{$1}->{'classifyinfo'});
|
|---|
| 480 | }
|
|---|
| 481 | else
|
|---|
| 482 | {
|
|---|
| 483 | $subOID =~ s/^Metavalue_(\d+)\.//;
|
|---|
| 484 | my $metaname_offset = $1 -1;
|
|---|
| 485 | my $oid_rec = {'OID'=>$subOID, 'offset'=>$metaname_offset};
|
|---|
| 486 | push (@{$classifyinfo->{'contains'}}, $oid_rec);
|
|---|
| 487 | }
|
|---|
| 488 | }
|
|---|
| 489 | return $classifyinfo;
|
|---|
| 490 | }
|
|---|
| 491 |
|
|---|
| 492 | # first split up the list into separate A-Z and 0-9 classifications
|
|---|
| 493 | foreach $classification (@$classlistref) {
|
|---|
| 494 | my $title = $self->{'reclassifylist'}->{$classification};
|
|---|
| 495 | $title =~ s/&(.){2,4};//g; # remove any HTML special chars
|
|---|
| 496 | ### $title =~ s/^\s+//g; # remove a leading spaces
|
|---|
| 497 | ### $title =~ s/^_+//g; # remove a leading underscores
|
|---|
| 498 | $title =~ s/^\W+//g;
|
|---|
| 499 | ### $title =~ s/^(\'|\`|\"|\:|\()//g; # remove any opening punctutation
|
|---|
| 500 | $title =~ s/^(.).*$/$1/;
|
|---|
| 501 | $title =~ tr/[a-z]/[A-Z]/;
|
|---|
| 502 |
|
|---|
| 503 | if ($title =~ /^[0-9]$/) {$title = '0-9';}
|
|---|
| 504 | elsif ($title !~ /^[A-Z]$/) {
|
|---|
| 505 | print STDERR "AZCompactList: WARNING $classification has badly formatted title ($title)\n";
|
|---|
| 506 | }
|
|---|
| 507 | $classhash->{$title} = [] unless defined $classhash->{$title};
|
|---|
| 508 | push (@{$classhash->{$title}}, $classification);
|
|---|
| 509 | }
|
|---|
| 510 | $classhash = $self->compactlist ($classhash);
|
|---|
| 511 |
|
|---|
| 512 | my @tmparr = ();
|
|---|
| 513 | foreach $subsection (sort keys (%$classhash)) {
|
|---|
| 514 | push (@tmparr, $subsection);
|
|---|
| 515 | }
|
|---|
| 516 |
|
|---|
| 517 | # if there's a 0-9 section it will have been sorted to the beginning
|
|---|
| 518 | # but we want it at the end
|
|---|
| 519 | if ($tmparr[0] eq '0-9') {
|
|---|
| 520 | shift @tmparr;
|
|---|
| 521 | push (@tmparr, '0-9');
|
|---|
| 522 | }
|
|---|
| 523 |
|
|---|
| 524 | foreach $subclass (@tmparr)
|
|---|
| 525 | {
|
|---|
| 526 | my $tempclassify = $self->get_entry($subclass, "VList", $metaname);
|
|---|
| 527 | foreach $subsubOID (@{$classhash->{$subclass}})
|
|---|
| 528 | {
|
|---|
| 529 | if ($subsubOID =~ /^CLASSIFY\.(.*)$/
|
|---|
| 530 | && defined $self->{'classifiers'}->{$1})
|
|---|
| 531 | {
|
|---|
| 532 | push (@{$tempclassify->{'contains'}},
|
|---|
| 533 | $self->{'classifiers'}->{$1}->{'classifyinfo'});
|
|---|
| 534 | }
|
|---|
| 535 | else
|
|---|
| 536 | {
|
|---|
| 537 | $subsubOID =~ s/^Metavalue_(\d+)\.//;
|
|---|
| 538 | my $metaname_offset = $1 -1;
|
|---|
| 539 | my $oid_rec = {'OID'=>$subsubOID, 'offset'=>$metaname_offset};
|
|---|
| 540 | push (@{$tempclassify->{'contains'}}, $oid_rec);
|
|---|
| 541 | }
|
|---|
| 542 | }
|
|---|
| 543 | push (@{$classifyinfo->{'contains'}}, $tempclassify);
|
|---|
| 544 | }
|
|---|
| 545 |
|
|---|
| 546 | return $classifyinfo;
|
|---|
| 547 | }
|
|---|
| 548 |
|
|---|
| 549 | sub compactlist {
|
|---|
| 550 | my $self = shift (@_);
|
|---|
| 551 | my ($classhashref) = @_;
|
|---|
| 552 | my $compactedhash = {};
|
|---|
| 553 | my @currentOIDs = ();
|
|---|
| 554 | my $currentfirstletter = "";
|
|---|
| 555 | my $currentlastletter = "";
|
|---|
| 556 | my $lastkey = "";
|
|---|
| 557 |
|
|---|
| 558 | # minimum and maximum documents to be displayed per page.
|
|---|
| 559 | # the actual maximum will be max + (min-1).
|
|---|
| 560 | # the smallest sub-section is a single letter at present
|
|---|
| 561 | # so in this case there may be many times max documents
|
|---|
| 562 | # displayed on a page.
|
|---|
| 563 | my $min = $self->{'mincompact'};
|
|---|
| 564 | my $max = $self->{'maxcompact'};
|
|---|
| 565 |
|
|---|
| 566 | foreach $subsection (sort keys %$classhashref) {
|
|---|
| 567 | if ($subsection eq '0-9') {
|
|---|
| 568 | @{$compactedhash->{$subsection}} = @{$classhashref->{$subsection}};
|
|---|
| 569 | next;
|
|---|
| 570 | }
|
|---|
| 571 | $currentfirstletter = $subsection if $currentfirstletter eq "";
|
|---|
| 572 | if ((scalar (@currentOIDs) < $min) ||
|
|---|
| 573 | ((scalar (@currentOIDs) + scalar (@{$classhashref->{$subsection}})) <= $max)) {
|
|---|
| 574 | push (@currentOIDs, @{$classhashref->{$subsection}});
|
|---|
| 575 | $currentlastletter = $subsection;
|
|---|
| 576 | } else {
|
|---|
| 577 |
|
|---|
| 578 | if ($currentfirstletter eq $currentlastletter) {
|
|---|
| 579 | @{$compactedhash->{$currentfirstletter}} = @currentOIDs;
|
|---|
| 580 | $lastkey = $currentfirstletter;
|
|---|
| 581 | } else {
|
|---|
| 582 | @{$compactedhash->{"$currentfirstletter-$currentlastletter"}} = @currentOIDs;
|
|---|
| 583 | $lastkey = "$currentfirstletter-$currentlastletter";
|
|---|
| 584 | }
|
|---|
| 585 | if (scalar (@{$classhashref->{$subsection}}) >= $max) {
|
|---|
| 586 | $compactedhash->{$subsection} = $classhashref->{$subsection};
|
|---|
| 587 | @currentOIDs = ();
|
|---|
| 588 | $currentfirstletter = "";
|
|---|
| 589 | } else {
|
|---|
| 590 | @currentOIDs = @{$classhashref->{$subsection}};
|
|---|
| 591 | $currentfirstletter = $subsection;
|
|---|
| 592 | $currentlastletter = $subsection;
|
|---|
| 593 | }
|
|---|
| 594 | }
|
|---|
| 595 | }
|
|---|
| 596 |
|
|---|
| 597 | # add final OIDs to last sub-classification if there aren't many otherwise
|
|---|
| 598 | # add final sub-classification
|
|---|
| 599 | if (scalar (@currentOIDs) < $min) {
|
|---|
| 600 | my ($newkey) = $lastkey =~ /^(.)/;
|
|---|
| 601 | @currentOIDs = (@{$compactedhash->{$lastkey}}, @currentOIDs);
|
|---|
| 602 | delete $compactedhash->{$lastkey};
|
|---|
| 603 | @{$compactedhash->{"$newkey-$currentlastletter"}} = @currentOIDs;
|
|---|
| 604 | } else {
|
|---|
| 605 | if ($currentfirstletter eq $currentlastletter) {
|
|---|
| 606 | @{$compactedhash->{$currentfirstletter}} = @currentOIDs;
|
|---|
| 607 | } else {
|
|---|
| 608 | @{$compactedhash->{"$currentfirstletter-$currentlastletter"}} = @currentOIDs;
|
|---|
| 609 | }
|
|---|
| 610 | }
|
|---|
| 611 |
|
|---|
| 612 | return $compactedhash;
|
|---|
| 613 | }
|
|---|
| 614 |
|
|---|
| 615 | 1;
|
|---|
| 616 |
|
|---|
| 617 |
|
|---|
